Barrel-head machine



T. F. WARD. BARREL HEAD MACH INE.

FILED DEC, 5. I91

APPLICATION Q1 n w@ 5129. SHEETSfSHEET I.

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II'II T. F. WARD.

BARREL HEAD MACHINE. APPLICATION FILED DEC. 5, |919.

,35l,934 Pa/en'id Sept. 79 192@ T. F. WARD.

BARREL HEAD MACHINE. l APPLICATION FILED DEC. 5, I9I9.

Datenced Sept. 79 IQZIL 3 SHEETS-SHEET 3.

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l To all whom it may concern.

UNITED sT-Ares PATENT TIMOTHY F. WARD, OF EARLEYS, NORTH CAROLTNA.

BARREL-HEAD MACHINEy Specification '1" Letters Patent.

Application filed December 5, 1919. Serial No. 342,580.

Beit known that I, TIMOTHY F. WARD, a .citizen of the United States,residing Aat Earleys, in the county 'Y of Hertford and State of NorthCarolina, have invented certain new and useful Improvements inBarrel-Head Machines, ofwhich the following is a specification.

This invention relates to machines for sawing barrel heads or othercircular work, andhas for its object to provide an improved machine inwhich the work is presented to a concave circular saw and bevel cutterby means of an oscillating or swinging clamp containing rotary headswhich are driven by a shaft which is operated by means of gears whichcan be swung into or out of engagement with each other, to start or stopthe rotation of the Work. The shaft which carries the work includes auniversal joint which permits the oscillation of the head incident tothe movement of the work to and from the saw.

The operation may be conveniently controlled by means of a treadle,leaving the hands of the operator free to place and remove the stockafter each operation. This saves considerable time and greatly increasesthelcapacity of the machine.- Various adjustments of the operating partsare possible, as will be more fully explained hereinafter.

One form of the machine is illustrated in the accompanying drawings inwhich Figure 1 is a side elevation. Fig. 2 is a plan. Fig. 3y is a sideelevation as in Fig. `1 but with the parts in different position. Fig. 4is an enlarged detail in plan of the oscillating head which supports thework holder and its driving shaft. Fig. 5 is'a section on the line 5-5of Fig. 1. Fig. 6 is a detail of afmodiied form of drive. Fig. 7 is a.section on the line 7-7 of Fig. 4.

The bed of the machine conveniently consistscof two side sills 6supported by end frames or legs Tand connected by cross sills 8 whichsupport the shafts and other operative parts. The sawarbor or shaft 9 ismounted in bearings 10. on the cross pieces -8 and carries the concavecircular saw and cutter head 11 at yone end, and a driving pulley 13 towhich a driving belt (not shown) may be applied. Another shaft 9a isdriven by a belt '(not shown) on a pulley 12 and carries 'a pinion 14meshing with a gear 15 on the end of a shaft 16 supported in bearings byhangers 17 depending from the bef. it its front end the shaft 16 has abeveled gear 18 which is adapted to mesh with a beveled gear 19 on thelower end of an upright shaft which drives or carries the work holder. This upright shaft consists of a lower section 2O which is connected byuniversal joint 22 to an upper section 23. rThe lower .section 2O issupported between its ends by a box 26 which has trunnions 24 mounted inthe arms of a yoke 25 supported by one of the end frames 7, so that theshaft section 2O may swing. in a vertical plane to engage or disengagethe beveled gears 19 and 18 and thereby start or stopthe rotation of theupright shaft. Tn Fig. 1 the gears are shown engaged andin Fig. 3 theyare shown disengaged.

The upper shaft section 23 is carried in a bushing 27 which is fixed bya set screw 28 in an oscillating head 29 which is provided withtrunnions 39 at its opposite sides which are mounted to swing in boxes31 resting on the sills 6. An adjustment of the shaft toward and fromthe saw 11 is provided for by means of a collar 32 which rests on theannular head 29 and is adjusted by means of a screw 33 tapped through alug 34 on the collarwhich is then fixed at adjustment by clamping screws35 which are carried by lugs 36 on the collar and en! tend through slots37 in the head 29. The central opening in the head 29 is large enough topermit some lateral shift of the collar 32 in line with the axis of thesaw.

The work holder comprises a U-frame 40 the lower arm of which isprovided with an eye 41 through which the shaft 23 extends, said eyebeing supported by screw 42 which is tapped through a lug 43 on the eyeand rests at its head upon the collar 32. By adjusting the screw 42 theU-frame can be raised or lowered. Upon the upper end of the shaftsection 23 is mounted one clamping disk 44, the other disk 45 has a stubshaft 46 which extendsqhrough a bearing 47 in the upper arm of theU-frame, and is normally raised by a coil spring 48 bearing against thecollar 49 on the upper end of the stub 46 and may be lowered by a cam 50which turns on a pin 51 carried by a bracket 52 secured to the eye 4T.`When the cam is swung over it depresscs the disk 45 and clamps thestock against the opposite disk 44. These disks are so positioned thatsaw, as shown in iqg. l.

may be shifted toward or `from the stoel: .held thereby is presented atan angle to the saw and cutter head 1l, so that the saw and nttes willcut the chamfers on the barrei. head.

The work is rocked to aiid from the saw by a treadle GO which is pivotedat 6l and connected by a link 62 to an arm 63 projecting from the headQ9, and when the treadle eleased the head is rocked in the oppositedirection, or away from the saw by a weight 7G wh'ch is eoiinected'by arope 71 passing (fr: pulley 72 to an arm 73 depend- .ie head The rockingmovehead is limited by a bracket 90 om of the sills 6 and provided withL, `:ist which the arni 63 stops at its upward swing, and with an ablescrew against which the arm ps when swung down, and the adjustment ofthe screw enables the amount of bevel on the barrel head to be varied..

in i1 ig. 6 a modified drive is shown. vInstead oit' the spur gearing laand 15, I proi worin St on the saw arbor which worin fear Si on a shaft82 progear 83 which meshes ion Sei' on a shaft 16a which gear 18 and itscompanion being as above described. tie upright-shaft and work linormally stand in the position ith a b .veled l'iOi shown in llig. 3,'because of the weight 70, and in position the pieces -of stock areplaced between the disks fill and4 45 and clamped by throwing over thecani 50. Then the treadle is depressed. This swings the head and thework holdertoward the By the same movemerit the lower shalt section 30is swung on pivots 24: to mesh the gears 19 and 18, this` movement beingpermitted by the universal' joint 22. rihereby the upright shaft iscaused .to rotate the work is presented to the saw, which thus cuts thehead in a circle and produces the desirecchamfer at the edge. it will bappreciated that the speed of rotation of the wo'rlr holder isrelatively low. After the head is cut the tre-.idle is released andweight restores the parts to original position, the gear' 1S swingingout of mesh from the 18. To prevent spinning of the lupright shaft lprovide a spring a fastened to the rame whichy presses t e toothed wheelor ratcb t 91A on o accommodate th..y .ariation "lance between the 'twosect shaft inciden?. tothe rersaijoint 22 one or both joint areconnected to the L tions by the usual splined or squared connectionindicated at 96.

lt will be obvious that by adjusting the collar as above described theupright shaft the saw, different thereby accommodating heads of formedin two sections connected by Ia Hex# ible joint, each of said sectionsbeing pivotally mounted between its ends to swing in a plane parallel tothe axis of the saw, one section being provided with a work holder andthe other section being provided with adriving device engageable ordisengageable by the swing thereof, and means for adjusting the sectionprovided with the work holder radially of said work holder..

2. The combination with a saw, of an npright rotary shaft formed inupper and lower sections connected by a flexible joint, eachof saidsections being pivotally mounted between its ends to swing in a verticalplane parallel to the axis of the saw, the upper section being providedwith a substantially horizontal workholder and the lower section beingprovided with a driving device engageable or disengageable by the Swingthereof.

3. The combination with a saw, of a rotary shaft, a work holder carriedby the shaft and arranged to' s wing therewith toward and from the saw,a pivoted head supporting the shaft, and means to adjust the shaftradially of the pivoted head, toward and from zontal saw arbor thereon,a horizontal countershaft under the saw arbor, provided with a bevelgear, an upright shaft in the end of the frame, said shaft having upperand lower septions, the lower section being provided with a bevelgearlwhich may be swung into or out of mesh with said bevel gear, aflexible joint between the two sections, a

work holder carried by the upper section and' adapted tol swingtherewith toward 'and from the saw, and a pivotal bearing support' foreach shaft section located between the ends of the respective sections.

In testimony whereof, I affix my signature in presence of two witnesses.

TMOTHY F. 1i/VARD., Witnesses V. DSTRICKLAND, JAS. H.'M\1roirnLL.

